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7
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1 <tool id="samtools_filter" name="Filter SAM or BAM" version="1.1.1">
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2 <description>files on FLAG MAPQ RG LN or by region</description>
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3 <requirements>
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4 <requirement type="package" version="0.1.18">samtools</requirement>
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5 </requirements>
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6 <!--
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7 samtools view [-bchuHS] [-t in.refList] [-o output] [-f reqFlag] [-F skipFlag] [-q minMapQ] [-l library] [-r readGroup] [-R rgFile] <in.bam>|<in.sam> [region1 [...]]
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8 Usage: samtools view [options] <in.bam>|<in.sam> [region1 [...]]
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9
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10 Options: -b output BAM
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11 -h print header for the SAM output
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12 -H print header only (no alignments)
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13 -S input is SAM
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14 -u uncompressed BAM output (force -b)
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15 -1 fast compression (force -b)
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16 -x output FLAG in HEX (samtools-C specific)
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17 -X output FLAG in string (samtools-C specific)
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18 -c print only the count of matching records
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19 -L FILE output alignments overlapping the input BED FILE [null]
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20 -t FILE list of reference names and lengths (force -S) [null]
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21 -T FILE reference sequence file (force -S) [null]
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22 -o FILE output file name [stdout]
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23 -R FILE list of read groups to be outputted [null]
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24 -f INT required flag, 0 for unset [0]
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25 -F INT filtering flag, 0 for unset [0]
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26 -q INT minimum mapping quality [0]
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27 -l STR only output reads in library STR [null]
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28 -r STR only output reads in read group STR [null]
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29 -? longer help
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30 -->
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31 <command>
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32 ##set up input files, regions requires input.bam and input.bai
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33 #if isinstance($input1.datatype, $__app__.datatypes_registry.get_datatype_by_extension('bam').__class__):
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34 #set $input = 'input.bam'
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35 ln -s $input1 $input &&
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36 ln -s $input1.metadata.bam_index input.bai &&
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37 #elif isinstance($input1.datatype, $__app__.datatypes_registry.get_datatype_by_extension('sam').__class__):
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38 #set $input = 'input.sam'
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39 ln -s $input1 $input &&
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40 #end if
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41 samtools view -o "$output1" $header
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42
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43 #if $input1.datatype.file_ext == 'sam':
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44 -S
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45 #end if
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46
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47 #if $outputtype.__str__ == "bam":
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48 -b
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49 #end if
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50
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51
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52 #if $mapq.__str__ != '':
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53 -q $mapq
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54 #end if
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55 #if $flag.filter.__str__ == 'yes':
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56 #if $flag.reqBits.__str__ != 'None':
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57 #set $reqs = $flag.reqBits.__str__.split(',')
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58 #set $reqFlag = 0
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59 #for $xn in $reqs:
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60 #set $reqFlag += int(xn,16)
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61 #end for
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62 -f $hex($reqFlag)
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63 #end if
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64 #if $flag.skipBits.__str__ != 'None':
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65 #set $skips = $flag.skipBits.__str__.split(',')
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66 #set $skipFlag = 0
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67 #for $xn in $skips:
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68 #set $skipFlag += int(xn,16)
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69 #end for
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70 -F $hex($skipFlag)
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71 #end if
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72 #end if
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73 #if $read_group.__str__.strip() != '':
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74 -r $read_group
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75 #end if
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76 #if $library.__str__.strip() != '':
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77 -l $library
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78 #end if
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79 #if $bed_file.__str__ != "None" and len($bed_file.__str__) > 0:
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80 -L $bed_file
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81 #end if
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82 $input
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83 #if $regions.__str__.strip() != '' and $input1.datatype.file_ext == 'bam':
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84 $regions.__str__.strip()
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85 #end if
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86 ## need to redirect stderr message so galaxy does not think this failed
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87 2>&1
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88 </command>
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89 <inputs>
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90 <param name="input1" type="data" format="sam,bam" label="SAM or BAM File to Filter" />
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91 <param name="header" type="select" label="Header in output">
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92 <option value="-h">Include Header</option>
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93 <option value="">Exclude Header</option>
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94 <option value="-H">Only the Header</option>
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95 </param>
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96 <param name="mapq" type="integer" value="" optional="true" label="Minimum MAPQ quality score">
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97 <validator type="in_range" message="The MAPQ quality score can't be negative" min="0"/>
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98 </param>
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99 <conditional name="flag">
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100 <param name="filter" type="select" label="Filter on bitwise flag">
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101 <option value="no">no</option>
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102 <option value="yes">yes</option>
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103 </param>
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104 <when value="no"/>
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105 <when value="yes">
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106 <param name="reqBits" type="select" multiple="true" display="checkboxes" label="Only output alignments with all of these flag bits set" >
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107 <option value="0x0001">Read is paired</option>
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108 <option value="0x0002">Read is mapped in a proper pair</option>
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109 <option value="0x0004">The read is unmapped</option>
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110 <option value="0x0008">The mate is unmapped</option>
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111 <option value="0x0010">Read strand</option>
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112 <option value="0x0020">Mate strand</option>
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113 <option value="0x0040">Read is the first in a pair</option>
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114 <option value="0x0080">Read is the second in a pair</option>
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115 <option value="0x0100">The alignment or this read is not primary</option>
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116 <option value="0x0200">The read fails platform/vendor quality checks</option>
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117 <option value="0x0400">The read is a PCR or optical duplicate</option>
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118 </param>
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119 <param name="skipBits" type="select" multiple="true" display="checkboxes" label="Skip alignments with any of these flag bits set" >
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120 <option value="0x0001">Read is paired</option>
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121 <option value="0x0002">Read is mapped in a proper pair</option>
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122 <option value="0x0004">The read is unmapped</option>
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123 <option value="0x0008">The mate is unmapped</option>
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124 <option value="0x0010">Read strand</option>
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125 <option value="0x0020">Mate strand</option>
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126 <option value="0x0040">Read is the first in a pair</option>
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127 <option value="0x0080">Read is the second in a pair</option>
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128 <option value="0x0100">The alignment or this read is not primary</option>
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129 <option value="0x0200">The read fails platform/vendor quality checks</option>
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130 <option value="0x0400">The read is a PCR or optical duplicate</option>
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131 </param>
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132 </when>
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133 </conditional>
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134 <param name="library" type="text" value="" size="20" label="Select alignments from Library"
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135 help="Requires headers in the input SAM or BAM, otherwise no alignments will be output."/>
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136 <param name="read_group" type="text" value="" size="20" label="Select alignments from Read Group"
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137 help="Requires headers in the input SAM or BAM, otherwise no alignments will be output."/>
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138 <param name="bed_file" type="data" format="bed" optional="true" label="Output alignments overlapping the regions in the BED FILE"/>
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139 <param name="regions" type="text" value="" size="180" label="Select regions (only used when the input is in BAM format)"
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140 help="region should be presented in one of the following formats: `chr1', `chr2:1,000' and `chr3:1000-2,000'"/>
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141 <param name="outputtype" type="select" label="Select the output format">
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142 <option value="bam">bam</option>
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143 <option value="sam">sam</option>
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144 </param>
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145 </inputs>
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146 <outputs>
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147 <data name="output1" format_source="input1" label="${tool.name} on ${on_string}: ${input1.datatype.file_ext}">
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148 <change_format>
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149 <when input="outputtype" value="bam" format="bam" />
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150 </change_format>
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151 </data>
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152 </outputs>
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153 <tests>
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154 <test>
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155 <param name="input1" value="bam_to_sam_in2.sam" ftype="sam" />
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156 <param name="header" value=""/>
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157 <param name="filter" value="yes"/>
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158 <param name="reqBits" value="0x0080"/>
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159 <output name="output1" >
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160 <assert_contents>
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161 <has_text text="141" />
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162 <not_has_text text="77" />
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163 </assert_contents>
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164 </output>
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165 </test>
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166 <test>
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167 <param name="input1" value="bam_to_sam_in2.sam" ftype="sam" />
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168 <param name="header" value=""/>
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169 <param name="filter" value="no"/>
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170 <param name="read_group" value="rg1"/>
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171 <output name="output1" >
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172 <assert_contents>
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173 <has_text text="rg1" />
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174 <not_has_text text="rg2" />
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175 </assert_contents>
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176 </output>
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177 </test>
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178 <test>
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179 <param name="input1" value="bam_to_sam_in1.sam" ftype="sam" />
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180 <param name="header" value=""/>
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181 <param name="filter" value="yes"/>
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182 <param name="skipBits" value="0x0008"/>
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183 <param name="mapq" value="250"/>
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184 <output name="output1" >
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185 <assert_contents>
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186 <has_text text="both_reads_align_clip_marked" />
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187 <not_has_text text="both_reads_present_only_first_aligns" />
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188 </assert_contents>
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189 </output>
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190 </test>
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191 </tests>
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192 <help>
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193
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194
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195 **What it does**
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196
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197 This tool uses the samtools view command in SAMTools_ toolkit to filter a SAM or BAM file on the MAPQ (mapping quality), FLAG bits, Read Group, Library, or region.
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198
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199 **Input**
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200
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201 Input is either a SAM or BAM file.
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202
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203 **Output**
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204
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205 The output file will be SAM or BAM (depending on the chosen option), filtered by the selected options.
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206
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207 **Options**
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208
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209 Filtering by read group or library requires headers in the input SAM or BAM file.
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210
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211 If regions are specified, only alignments overlapping the specified regions will be output. An alignment may be given multiple times if it is overlapping several regions.
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212 A region can be presented, for example, in the following format::
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213
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214 chr2 (the whole chr2)
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215 chr2:1000000 (region starting from 1,000,000bp)
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216 chr2:1,000,000-2,000,000 (region between 1,000,000 and 2,000,000bp including the end points).
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217
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218 Note: The coordinate is 1-based.
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219
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220 Multiple regions may be specified, separated by a space character::
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221
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222 chr2:1000000-2000000 chr2:1,000,000-2,000,000 chrX
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223
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224
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225
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226 .. _SAMTools: http://samtools.sourceforge.net/samtools.shtml
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227
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228 </help>
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229 </tool>
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